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1. 发明授权

US10197769B2 Single-focus optical system and optical apparatus using the same 有权
公开(公告)号：US10197769B2
公开(公告)日：2019-02-05
申请号：US15808278
申请日：2017-11-09
申请人： OLYMPUS CORPORATION
发明人： Keisuke Ichikawa , Shinichi Mihara
IPC分类号： G02B9/64 , G02B13/18 , G02B9/00 , G02B7/04 , G02B13/00 , G02B5/00 , G02B7/02 , G02B21/36
摘要： A single-focus optical system includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit having a positive refractive power. The first lens unit includes at least a first sub-unit, a second sub-unit, and a third sub-unit. The first sub-unit includes one of, a one negative lens component and a plurality of negative lens components that are continuous, the second sub-unit includes two meniscus lens components having respective concave surfaces thereof facing mutually, and the third sub-unit includes a plurality of positive lens components disposed closest to the reduction side in the third sub unit. The second lens unit includes one negative lens component. The third lens unit includes negative lens, and also includes a positive lens component closest to the enlargement side. All air spaces in the first lens unit are constant.

2. 发明授权

US10197768B2 Single focus optical system and optical apparatus using the same 有权
公开(公告)号：US10197768B2
公开(公告)日：2019-02-05
申请号：US15800320
申请日：2017-11-01
申请人： OLYMPUS CORPORATION
发明人： Keisuke Ichikawa , Shinichi Mihara
IPC分类号： G02B9/64 , G02B13/04 , G02B7/04 , G02B13/00 , G02B7/02 , G02B5/00 , G02B21/36 , G02B13/18
摘要： A single-focus optical system includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. The first lens unit includes a reduction-side lens component closest to the reduction side, and a shape of the reduction-side lens component is a meniscus shape having a convex surface directed toward the enlargement side. The second lens unit includes a cemented lens of a meniscus shape having a convex surface directed toward the reduction side, and a plurality of positive lens components. The cemented lens in the second lens unit includes a negative lens and a positive lens. The third lens unit includes a negative lens component closest to the enlargement side. All air spaces in the first lens unit and in the second lens unit are constant at the time of focusing.

3. 发明授权

US09952416B2 Imaging optical system and optical apparatus including the same 有权
公开(公告)号：US09952416B2
公开(公告)日：2018-04-24
申请号：US15391918
申请日：2016-12-28
申请人： OLYMPUS CORPORATION
发明人： Keisuke Ichikawa
IPC分类号： G02B13/18 , G02B9/60 , G02B27/00 , G02B5/00 , H04N5/225 , H04N5/232 , G02B13/00 , G02B3/04 , G02B13/04
CPC分类号： G02B13/18 , G02B3/04 , G02B5/005 , G02B9/60 , G02B9/64 , G02B13/002 , G02B13/0045 , G02B13/04 , G02B13/16 , G02B27/0025 , H04N5/2254 , H04N5/23293
摘要： An imaging optical system includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a positive refractive power, a fourth lens unit, and a fifth lens unit, and the first lens unit includes a first negative lens and a first cemented lens, the second lens unit includes a second cemented lens and one or more positive lens components, the third lens unit includes one or more positive lens components and a third cemented lens, and the first cemented lens includes a negative lens closest to the reduction side and has a concave surface facing the reduction side, the second cemented lens has a positive refractive power and has a concave surface facing the enlargement side, the third cemented lens has a positive refractive power and has a negative lens on the reduction side.

4. 发明申请

US20160306186A1 IMAGE FORMING LENS SYSTEM AND IMAGE PICKUP APPARATUS USING THE SAME 有权
标题翻译：使用该图像成像镜头系统和图像拾取装置
公开(公告)号：US20160306186A1
公开(公告)日：2016-10-20
申请号：US15189439
申请日：2016-06-22
申请人： Olympus Corporation
发明人： Takashi Fujikura , Keisuke Ichikawa , Kazuteru Kawamura
IPC分类号： G02B27/64 , G02B27/00 , H04N5/225 , G02B15/173 , H04N5/232 , G02B7/04 , G02B9/60
CPC分类号： G02B9/04 , G02B7/04 , G02B9/60 , G02B15/173 , G02B27/0025 , G02B27/646 , H04N5/2254 , H04N5/23229
摘要： An image forming lens system includes a front lens unit having a positive refractive power, and a rear lens unit, and does not include any other lens unit. The front lens unit includes a first lens unit having a positive refractive power and a second lens unit having a negative refractive power. Each of the first lens unit and the second lens unit includes a positive lens and a negative lens. The second lens unit is a focusing lens unit. The rear lens unit includes a positive lens and a negative lens. The second lens unit is the only lens unit that moves, in the front lens unit, and the following conditional expressions (1) and (2′) are satisfied: 0.5

5. 发明申请

US20150355445A1 Optical System and Optical Instrument, Image Pickup Apparatus, and Image Pickup System Using the Same 有权
公开(公告)号：US20150355445A1
公开(公告)日：2015-12-10
申请号：US14830283
申请日：2015-08-19
申请人： OLYMPUS CORPORATION
发明人： Yoshihiro Uchida , Kenichiro Abe , Keisuke Ichikawa
IPC分类号： G02B21/02 , G02B13/26 , G02B21/26 , G02B13/18 , G02B5/00 , G02B21/06
CPC分类号： G02B15/14 , G02B5/005 , G02B9/64 , G02B13/18 , G02B13/26 , G02B21/02 , G02B21/06 , G02B21/26
摘要： An optical system which forms an optical image on an image pickup element, comprising in order from an object side, a first lens unit having a positive refractive power, which includes a plurality of lenses, a stop, and a second lens unit which includes a plurality of lenses, wherein the first lens unit includes a first object-side lens which is disposed nearest to an object, and the second lens unit includes a second image-side lens which is disposed nearest to an image, and the first lens unit includes a negative lens, and a positive lens which is disposed on the object side of the negative lens, and the following conditional expressions are satisfied: β≦−1.1 (15) 0.08

6. 发明申请

US20150146036A1 Image Forming Lens System and Image Pickup Apparatus Using the Same 有权
标题翻译：图像成像透镜系统和使用其的图像拾取装置
公开(公告)号：US20150146036A1
公开(公告)日：2015-05-28
申请号：US14553643
申请日：2014-11-25
申请人： OLYMPUS CORPORATION
发明人： Takashi Fujikura , Keisuke Ichikawa , Kazuteru Kawamura
IPC分类号： G02B9/04 , H04N5/232 , G02B27/64
CPC分类号： G02B9/04 , G02B7/04 , G02B9/60 , G02B15/173 , G02B27/0025 , G02B27/646 , H04N5/2254 , H04N5/23229
摘要： An image forming lens system includes a front lens unit having a positive refractive power, and a rear lens unit, and does not include any other lens unit. The front lens unit includes a first lens unit having a positive refractive power and a second lens unit having a negative refractive power. Each of the first lens unit and the second lens unit includes a positive lens and a negative lens. The second lens unit is a focusing lens unit. The rear lens unit includes a positive lens and a negative lens. The second lens unit is the only lens unit that moves, in the front lens unit, and the following conditional expressions (1) and (2′) are satisfied: 0.5
摘要翻译：图像形成透镜系统包括具有正折光力的前透镜单元和后透镜单元，并且不包括任何其它透镜单元。前透镜单元包括具有正屈光力的第一透镜单元和具有负屈光力的第二透镜单元。第一透镜单元和第二透镜单元中的每一个包括正透镜和负透镜。第二透镜单元是聚焦透镜单元。后透镜单元包括正透镜和负透镜。第二透镜单元是在前透镜单元中移动并且满足以下条件表达式（1）和（2'）的唯一透镜单元：0.5

7. 发明授权

US10830991B2 Single-focus optical system and optical apparatus using the same 有权
公开(公告)号：US10830991B2
公开(公告)日：2020-11-10
申请号：US16147677
申请日：2018-09-29
申请人： OLYMPUS CORPORATION
发明人： Keisuke Ichikawa , Shinichi Mihara
IPC分类号： G02B9/62 , G02B13/04 , G02B13/00 , G02B13/18 , G02B9/34
摘要： A single-focus optical system includes a front lens unit and a rear lens unit. The front lens unit either includes a predetermined sub lens unit or includes an enlargement-side sub lens unit and a predetermined sub lens unit. The rear lens unit includes a first sub lens unit, a second sub lens unit, a third sub lens unit, and a fourth sub lens unit. The enlargement-side sub lens unit includes a negative lens component. The predetermined sub lens unit includes an enlargement-side meniscus lens component and a reduction-side meniscus lens component. The first sub lens unit includes positive lenses and a first predetermined negative lens. The second sub lens unit includes a predetermined negative lens component. The third sub lens unit includes a predetermined positive lens component. The fourth sub lens unit includes all lens components positioned on the reduction side of the predetermined positive lens component.

8. 发明授权

US09946050B2 Image forming lens system and image pickup apparatus using the same 有权
公开(公告)号：US09946050B2
公开(公告)日：2018-04-17
申请号：US15189439
申请日：2016-06-22
申请人： Olympus Corporation
发明人： Takashi Fujikura , Keisuke Ichikawa , Kazuteru Kawamura
IPC分类号： G02B9/04 , G02B27/64 , H04N5/232 , G02B15/173 , G02B7/04 , G02B9/60 , G02B27/00 , H04N5/225
CPC分类号： G02B9/04 , G02B7/04 , G02B9/60 , G02B15/173 , G02B27/0025 , G02B27/646 , H04N5/2254 , H04N5/23229
摘要： An image forming lens system includes a front lens unit having a positive refractive power, and a rear lens unit, and does not include any other lens unit. The front lens unit includes a first lens unit having a positive refractive power and a second lens unit having a negative refractive power. Each of the first lens unit and the second lens unit includes a positive lens and a negative lens. The second lens unit is a focusing lens unit. The rear lens unit includes a positive lens and a negative lens. The second lens unit is the only lens unit that moves, in the front lens unit, and the following conditional expressions (1) and (2′) are satisfied: 0.5

9. 发明授权

US09448392B2 Zoom lens and image pickup apparatus using the same 有权
公开(公告)号：US09448392B2
公开(公告)日：2016-09-20
申请号：US14820833
申请日：2015-08-07
申请人： OLYMPUS CORPORATION
发明人： Keisuke Ichikawa
IPC分类号： G02B15/173 , G02B15/163 , G02B13/00 , G02B15/20
CPC分类号： G02B15/163 , G02B13/009 , G02B15/173 , G02B15/20
摘要： A zoom lens includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, a fifth lens unit having a positive refractive power, and an aperture stop disposed between the second lens unit and the third lens unit. At the time of zooming, the aperture stop moves and the fifth lens unit is fixed. At the time of zooming from a wide angle end to a telephoto end, a distance between the first lens unit and the second lens unit widens, a distance between the second lens unit and the third lens unit narrows, a distance between the third lens unit and the fourth lens unit fluctuates, and a distance between the fourth lens unit and the fifth lens unit fluctuates.

10. 发明授权

US09134517B2 Zoom lens and image pickup apparatus using the same 有权
标题翻译：变焦镜头和使用其的摄像设备
公开(公告)号：US09134517B2
公开(公告)日：2015-09-15
申请号：US14478891
申请日：2014-09-05
申请人： OLYMPUS CORPORATION
发明人： Keisuke Ichikawa
IPC分类号： G02B15/14 , G02B15/20 , G02B15/173
CPC分类号： G02B15/163 , G02B13/009 , G02B15/173 , G02B15/20
摘要： A zoom lens includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, a fifth lens unit having a positive refractive power, and an aperture stop disposed between the second lens unit and the third lens unit. At the time of zooming, the aperture stop moves and the fifth lens unit is fixed. At the time of zooming from a wide angle end to a telephoto end, a distance between the first lens unit and the second lens unit widens, a distance between the second lens unit and the third lens unit narrows, a distance between the third lens unit and the fourth lens unit fluctuates, and a distance between the fourth lens unit and the fifth lens unit fluctuates.
摘要翻译：变焦透镜包括具有正折光力的第一透镜单元，具有负折光力的第二透镜单元，具有正折光力的第三透镜单元，具有负折光力的第四透镜单元，具有正折光力的第五透镜单元设置在第二透镜单元和第三透镜单元之间的孔径光阑。在变焦时，孔径光阑移动，第五透镜单元固定。在从广角端到望远端的变焦时，第一透镜单元和第二透镜单元之间的距离变宽，第二透镜单元和第三透镜单元之间的距离变窄，第三透镜单元并且第四透镜单元波动，并且第四透镜单元与第五透镜单元之间的距离变动。

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